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The analysis looked at the number of National Insurance Number registrations (NiNo) during the financial year 2014-2015, and how many of those were to foreign nationals.

That makes it possible to estimate the proportion of the local population who were foreign workers at the time of the last election.

The top 70 immigration rates range from 10.1% in the Tottenham constituency to 3.2% in Leicester East.

The North West has three constituencies included in the range - and all of them went to Labour.

In the West Midlands there are three constituencies among those with the highest immigration rates: Birmingham Ladywood, Coventry South, Wolverhampton South West and Coventry North East. All of them voted for Labour MPs.

The East Midlands has three constituency on the ‘high immigration list’. They are Nottingham East, Leicester West and Leicester East. All of them have Labour MPs.